Blood flow chamber



FIG. 1 is a perspective view of a blood flow chamber showing our new design;

FIG. 2 is a top plan view of the blood flow chamber of FIG. 1;

FIG. 3 is a bottom plan view of the blood flow chamber of FIG. 1;

FIG. 4 is a side elevation view of the blood flow chamber of FIG. 1;

FIG. 5 is one end elevation view of the blood flow chamber of FIG. 1; and,

FIG. 6 is another end elevation view of the blood flow chamber of FIG. 1.

The broken lines in the drawings illustrate portions of the blood flow chamber and form no part of the claimed design. 

CLAIM The ornamental design for a blood flow chamber, as shown and described. 